According to the passage, Bianca Sfroza isA．a woman who stepped into the field of art on J

According to the passage, Bianca Sfroza is

A．a woman who stepped into the field of art on January 30,1998.

B．a beautiful woman attending a Christie"s auction in New York City.

C．thought to be drawn in early 19th century by a German.

D．suspected by Kate Ganz as a masterpiece of Leonardo.

请帮忙给出正确答案和分析，谢谢！